Coverage & match quality
1 rating · 1 of 4 axes
no black box
We don't rate products ourselves. We collect what each public rater already says, put every scale on common ground, and keep the disagreements visible instead of averaging them away.
Collect each rater's own score
Every source keeps its native verdict for this product. We never invent a score for an axis a source didn't measure.
Normalize to 0–100, higher = better
Raters can use different scales and directions: some where a low number means safe, some where a high one does. We map them all onto one 0–100 axis and flip the ones that run backwards so the numbers are finally comparable.
Average per axis, but keep the spread
Scores on the same axis become one representative number (their mean). When raters split by 20+ points we flag it and keep every rater's number. A disagreement is never blended into silence.
Your weights make the overall
The ring is the weighted average of the four pillars using your weights. It's computed fresh every time and never stored, so there's no hidden “objective” default.
worked example · Ingredient safety
Greenlens Ingredient Scan
Independent · EU regulatory reference
Flagged 4 of 25 ingredients: 1 prohibited, 2 restricted. Score capped: a prohibited (banned) substance is present.
Penalties alone would give 25, but a prohibited substance is present, so the score is capped at 15 — a genuine hazard isn’t diluted away by a long ingredient list.
Starts at 100; 22 other ingredients carried no recognized regulated hazard. Absence of a flag means no regulated hazard was recognized — not proof of safety. This is one lens; see where raters disagree above.
Why this score
Every ingredient, under all three lenses
The Scan is one opinion. The strict and lenient lenses read the same list and land 45 points apart. See what each one flags, and what it costs.
Tune your weights
composite recomputes live
+No rater covers this axis for this product, so its weight can't move the score.
No rater covers this axis for this product, so its weight can't move the score.
No rater covers this axis for this product, so its weight can't move the score.
Data availability
Robust25 of 25 characterized
Our sources have reference data on all 25 listed ingredients.
| Ingredient | What it does | Safety | Data |
|---|---|---|---|
| Aquasolvent | solvent | No flags in our sources | Well-characterized |
| Cocamidopropyl Betaineantistaticcleansinghair conditioning | antistaticcleansinghair conditioning | Strong contact sensitizer· flagged by 1 of 9raters disagree | Referenced |
| Lauryl Glucosidecleansingsurfactant - cleansing | cleansingsurfactant - cleansing | No flags in our sources | Well-characterized |
| Decyl Glucosidecleansingemulsion stabilisingsurfactant - cleansing | cleansingemulsion stabilisingsurfactant - cleansing | No flags in our sources | Well-characterized |
| Coco-Glucosidecleansingfoamingsurfactant - cleansing | cleansingfoamingsurfactant - cleansing | No flags in our sources | Well-characterized |
| Aloe Barbadensis Leaf Juiceskin conditioning | skin conditioning | IARC possible carcinogen (Group 2B)· flagged by 1 of 9raters disagree | Referenced |
| Glycerinperfuminghumectantdenaturant | perfuminghumectantdenaturant | No flags in our sources | Well-characterized |
| Hydrolyzed Keratinfilm forminghumectantantistatic | film forminghumectantantistatic | EU-prohibited· flagged by 2 of 9raters disagree | CosIng-catalogued |
| Polysorbate 80denaturantsurfactant - cleansingsurfactant - emulsifying | denaturantsurfactant - cleansingsurfactant - emulsifying | No flags in our sources | Well-characterized |
| Sodium Lactatehumectantbufferingkeratolytic | humectantbufferingkeratolytic | No flags in our sources | Well-characterized |
| Polyquaternium-7film formingantistatic | film formingantistatic | EU-restricted (with limits)· flagged by 2 of 9raters disagree | Referenced |
| Propylene Glycolhumectantskin conditioningsolvent | humectantskin conditioningsolvent | No flags in our sources | Well-characterized |
| Cetrimonium Chloridepreservativeantimicrobialantistatic | preservativeantimicrobialantistatic | EU-restricted (with limits)· flagged by 2 of 9raters disagree | Referenced |
| PEG-40 Hydrogenated Castor Oilsurfactant - cleansingsurfactant - emulsifying | surfactant - cleansingsurfactant - emulsifying | No flags in our sources | CosIng-catalogued |
| Argania Spinosa Kernel Oilemollientskin conditioning | emollientskin conditioning | No flags in our sources | Well-characterized |
| Panthenolantistatichair conditioningskin conditioning | antistatichair conditioningskin conditioning | No flags in our sources | Well-characterized |
| Xanthan Gumbindingemulsion stabilisinggel forming | bindingemulsion stabilisinggel forming | No flags in our sources | Well-characterized |
| Lavandula Angustifolia Oilfragrancetonic | fragrancetonic | No flags in our sources | CosIng-catalogued |
| Citrus Paradisi Peel Oilperfumingfragrance | perfumingfragrance | Examined, no flag | Referenced |
| Rosmarinus Officinalis Leaf Oilfragranceskin conditioning | fragranceskin conditioning | No flags in our sources | CosIng-catalogued |
| SR-Spider Polypeptide-1hair conditioningnail conditioningskin protecting | hair conditioningnail conditioningskin protecting | No flags in our sources | CosIng-catalogued |
| Sodium Benzoatepreservativefragranceanticorrosive | preservativefragranceanticorrosive | No flags in our sources | Well-characterized |
| Vinegar | No flags in our sources | Well-characterized | |
| Tetrasodium EDTAchelating | chelating | No flags in our sources | Well-characterized |
| Ascorbic Acidfragranceantioxidantbuffering | fragranceantioxidantbuffering | ANSES endocrine candidate· flagged by 1 of 9raters disagree | Referenced |